During the past few years, a lot of work has been done on behavioral models and
simulation tools. But a need for modeling strategy still remains. The VHDL-AMS language
supports the description of analog electronic circuits using Ordinary Differential Algebraic
Equations (ODAEs), in addition to its support for describing discrete-event systems. For
VHDL-AMS to be useful to the analog design community, efficient semiconductor device
models must be available. In this paper, potential merits of the new IEEE VHDL-AMS
standard in the field of modeling semiconductor devices are discussed. The device models
for diodes and the principles, techniques, and methodology used to achieve the design of an
analytical third generation Spice transistor MOS model named EKV are presented. This is
done by taking into account the thermoelectrical effect in VHDL-AMS, and with relevant
parameters set to match a deep submicron technology developed in VHDL-AMS. The
models were validated using System Vision from Mentor Graphics.